Paper-coating machine.



No. 643,574. Patented Feb. l3, I900.

' W. H. WALDRON.

PAPER COATING MACHINE.

(Application filed Sept. 16, 1899.l

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NITED STATES PATENT ()rricn.

WILLIAM HUBELI WALDRON, OF NEW BRUNSIVIOK, NEIV JERSEY.

PAPER-COATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 643,574, dated February13, 1900.

Application filed eptember 16, 1899. Serial No. 730,709. (No model.)

T0 to whom it may concern:

Be it known that I, WILLIAM HUBELI WAL- DRON, of New Brunswick, in thecounty of Middlesex and State of New Jersey, have invented a new andImproved Paper-Coating Machine, of which the following is a full,clear,and exact description.

My invention relates to paper-coating Inachines; and its object is toprovide a new and improved machine of this character designed either asan adjunct to a paper-making machine or for use as a separateindependent machine arranged to uniformly coat or ground the paper onboth sides. 7

The invention consists of novel features and parts, as will be fullydescribed hereinafter and then pointed ,out in the claim.

Reference is to be had to the accompanying drawing,in which the figureis a side elevation of the improvement with parts in section.

In the machine illustrated the paper A unwinds from a roll B and passesin a horizontal direction under a delivery device D, arranged to deliverthe coating liquid to the upper face of the paper, and the paper thenpasses in the direction of the arrow (1 underneath and around atransverse guiding-roller E in horizontal alinement with the deliverydevice D, being thereby turned so that as it passes underneath a seconddelivery device D, directly above the delivery device D, its other faceis coated, as plainly indicated in the drawing.

Each of the delivery devices D D comprises a trough F, havingfountain-rollers D D respectively, mounted therein, and aprons H H inperipheral contact at their upper ends with the top peripheral faces of-the rollers, their lower ends being in close proximity to the oppositefaces of the paper A, so that when the rollers are turned and the paperA travels in the direction of the arrows c then the coating liquidcontained in the troughs F is fed by the rollers D D upon the aprons HH,

from one side edge of the paper to the other.

After the paper leaves the delivery device D it passes under a roller Iand over a brush J, and then it passes over a roller 1 and under a brushJ to insure a ro er wi in of b the colors or pigments into the pores ofthe paper. The paper then extends between a series of top and bottombrushes K K and over a roller L, and finally passes between thedrawing-rollers, (not shown,) having fans 0 between the drawing-rollersand the roller L for drying the coated or ground paper to the desireddegree before passing from the drawing-rollers to a lathing-machine anda dryingrack, on which the paper is hung up in folds for a final drying.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent In a paper-coating machine, a delivery deviceconsisting of a trough under which the paper passes, a roller in saidtrough, and an apron in peripheral contact with said roller andextending outside the trough into close proximity to the upper surfaceof the paper, a transverse roller in horizontal alinement with saiddelivery device, the paper being passed around the roller and returnedhorizontally over the delivery device, and a second delivery devicesimilar to the first named and located immediately above the same, butreversed in position, the paper being passed underneath said seconddelivery device, as and for the purpose set forth.

WILLIAM HUBELI WALDRON.

Witnesses:

M. L. OLEMENTS, HERBERT M. WALDRON.

